I finally came back to this chamber after having been puzzled before. Yes, it is a good chamber - thanks Skyferret!Why not try my own latest creation, "Misdirection" if you really like a challenge. You'll find it in my workshop :)

I think I see what you mean. After that first button, go up the stairs, then portal the cube to yourself by firing a portal under the cube. Sometimes it's so easy to miss these things when you're building a puzzle. Something to remember next time. Thanks for pointing that out.

@jeroenvt. For starters, you can clearly see that the light bridge can be activated by portalling the laser beam. This must be done "after" you go up the first set of stairs. However, this means the stairs are in the way of the portalable panel where the laser must go in to activate the light bridge as mentioned. After you go up the first set of stairs, you'll notice the cube dropper button is in reach. If you get a new cube, this fizzles the first one, and the stairs now come down (leaving the panel free to be portalled). You can now activate the light bridge after you get up the very first set of stairs. Now the cube can fall on the light bridge while you're up there. I'll leave the rest up to you. Just remember, the cube dropper button can be pressed as many times as you like.

Ugh, I don't get it... I can't even get past the first room. Can't take the cube up with me, can't leave it on the button & portal it out. When I try to land one on the light bridge, I still have to stand on the button to get the stairs to come up if I align my portals with the lighting receptor thingy. My mind has been broken, good job, been a while since I couldn't solve a room in less than half an hour.

@unc0nn3ct3d. I guess sometimes you just run out of ideas. Then when I think of another design for another puzzle, I say to myself "hmmm, I could have used that idea on the other one". LOL. But thanks for playing.

@EuroSong: One of the things particular to this puzzle is that when a stairway is up, the panel behind it can't be portaled. But when it's down, the panel can be portaled. You will also notice that besides the button on the floor, it also takes a laser relay to lift the stairs. Sometimes it's a matter of having to get a new cube, and fizzling the old one. You may think that after you climb the first stairs, how can you be down there to get a new cube. Like 2 places at once. But look what else that laser relay activates. Perhaps something the new cube could fall on.

I can't get past the first puzzle - and I'm no n00b. I can't figure out a way to take the cube with me when I go up the stairs, because it has to remain on the button to activate the stairs. There are no portal surfaces upstairs. I'm stumped. Any clue?